Answer: Microsoft OA Question 2024 April | Trees & BFS | on-campus

Solution 1: Binary Tree Level Order Traversal — BFS Traversal Approach We can solve this problem using a Breadth-First Search (BFS) traversal with a queue. BFS naturally visits nodes level by level, from left to right. To separate the nodes of different levels in our output, we process nodes in batches. In each iteration, we record the size of the queue (which represents the number of nodes at the current level). We then loop exactly that many times, dequeueing each ...